US3555988A - Apparatus for image-transfer photography - Google Patents

Apparatus for image-transfer photography Download PDF

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Publication number
US3555988A
US3555988A US728997A US3555988DA US3555988A US 3555988 A US3555988 A US 3555988A US 728997 A US728997 A US 728997A US 3555988D A US3555988D A US 3555988DA US 3555988 A US3555988 A US 3555988A
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United States
Prior art keywords
presser member
housing
closed position
guide
stretch
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US728997A
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English (en)
Inventor
Karl Wagner
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Agfa Gevaert AG
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Agfa Gevaert AG
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/48—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus
    • G03B17/50—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with both developing and finishing apparatus
    • G03B17/52—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with both developing and finishing apparatus of the Land type

Definitions

  • a camera for image-transfer photography having a movably mounted first presser roller on the cover of the camera housing which is engaged by cams during movement of the cover to closed position for shifting the first pressure roller in a direction toward a second presser roller which is mounted in the body of the housing.
  • the second presser roller or the cams are biased by springs to insure that at least one of the presser rollers will yield when the negative and positive webs are being withdrawn from the housing upon completion I of an exposure and when the thickness of the laminated structure passing between the rollers increases.
  • the present invention relates to apparatus for imagetransfer photography. More particularly. the invention relates to improvements in such parts of an apparatus for imagetransfer photography which cause a developing fluid to spread between the photosensitive negative web and the imagereceptive positive web during extraction of an exposed length of negative web from the housing.
  • one of the presser rollers is mounted on the cover of the housing and is biased by springs to bear against the sheets when the cover is moved to closed position.
  • the springs which bias the movable roller are mounted on the cover.
  • the means for moving the cover to open position in order to permit reloading of the apparatus'with fresh supplies of positive and negative material comprises a mechanism which retracts the springs for the movable roller so that the cover can be moved to open position while the movable roller is retracted. i.e., moved away from the other roller which is mounted in the main portion or body of the housing.
  • the just-mentioned conventional apparatus normally comprise an interlocking device which couples the bearing for the movable roller with the bearing for the other roller when the cover is moved to closed position.
  • an interlocking device which couples the bearing for the movable roller with the bearing for the other roller when the cover is moved to closed position.
  • Another object of the invention isto provide a novel housing for apparatus of the just-outlined character and to provide a novel mounting and novel bearings and guide means for the rollers which press the negative and'positive materials against each other to effect uniform distribution of developing fluid during extraction of an exposed frame from the housing.
  • a further object of the invention is to provide a housing wherein the bearings and guide means for the rollers can be mass produced in available machinery and wherein at least one of the rollers can yield when the gap between the rollers must permit passage of a thicker portion of the negative and/or positive sheet material.
  • the improved apparatus comprises a housing having chamber means for positive and negative sheet or web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, the housing comprising a first portion or body and a second portion or cover movable with reference to the body between open and closed positions in which it respectively affords access to and seals the chamber means, and novel compressing means for biasing the positive and negative materials against each other during advance along a predetermined portion or stretch of presser member toward the first presser member in response to movement of the cover to closed position.
  • the guide means may include spring-biased guide members which define cam faces for the end portions of the second presser member.
  • the guide members can be rigidly securedto the body and the compressing device then comprises springs which bias the first presser member toward the second presser member.
  • the cover may comprise a substantially platelike outer wall which supports the second presser member and a pressure plate which is connected to the outer wall by springs and has a concave surface adjacent to a portion of the path along which the negative sheet material advances from the chamber means toward the presser members.
  • FIG. 1 is a longitudinal vertical sectional view of an apparatus which embodies one form of my invention, the cover of the housing being shown in closed position;
  • FIG. 2 is a larger scale view of the lower portion of the apparatus, with the cover shown in open position;
  • FIG. 3 is a sectional view as seen in the direction of arrows from the line iii-iii of FIG. 2;
  • FIG. 4 is a fragmentary sectional view of a modified apparatus.
  • FIG. I illustrates certain parts of an apparatus for imagetransfer photography.
  • the front wall of the camera housing carries a lens mount 2 which focusses the image of a subject or scene into the curved plane 3 of an unexposed photosensitive frame forming part of a web which is convoluted to form a roll 11.
  • Many standard parts of the camera such as the shutter, release trigger, range finder, view finder, shutter adjusting means and others are not shown in the drawing because their construction and/or operation forms no part of the present invention.
  • the housing of the apparatus comprises a first portion or body 1 and a second portion or cover 4 which is connected to the body 1 by a hinge In for movement between the closed position of FIG. 1 and the open or partly open position of FIG. 2.
  • the housing defines two chambers 1c, lb which are accessible when the cover 4 is moved to the open position.
  • the chamber lb accommodates the aforementioned roll 11 of unexposed negative material and the chamber 10 accommodates a second roll 12 of image receptive positive material which carries pods (not shown) of processing fluid.
  • the cover 4 comprises a flat outer wall 4A of plastic material and an inner wall 7 which constitutes a pressure plate and is connected to the outer wall be leaf springs 5, 6 so that it can move, within limits, toward and away from the outer wall.
  • the pressure plate 7 has a concave front surface 7a which I defines a portion of the path for the web which is being withdrawn from the roll 11.
  • An advantage of such configuration of the surface 7a is that it corrects the image field of the objective and improves the guidance of negative web material during advance toward the outlet 1D. Still further. the pressure plate 7 contributes to the eye-pleasing appearance of the cover 4 when the latter is moved to open position because its lower edge portion is sufficiently remote from the outer wall 4A to provide ample room for a presser member 9 which is mounted on the outer wall at a level below the pressure plate. i.e., below the lower leaf spring 6.
  • the lower portion of the outer wall 4A (as viewed in FIG. 1 or 2) carries a U-shaped bearing bracket 8 which is rigidly secured thereto and whose flanges 8b extend inwardly from the outer wall and are provided with elongated slots 8a for the tips 91; (FIG. 3) of end portions or stubs 9a of the presser member 9.
  • the latter is a roller which may consist of rubber or synthetic plastic material and is movable with reference to the cover 4 to the extent determined by the length of slots 8a. These slots are parallel to the plane of the outer wall 4a.
  • the presser member 9 forms part of a compressing device which serves to press the webs coming from the rolls 11, 12 against each other in that stretch of the path for these webs which is located upstream of the outlet 1D and is flanked by the roller 9 from one side and by a second presser member or roller 10 from the other side.
  • the roller 10 has end portions or stubs 104: which are rotatable in bearing plates 10b permanently installed in or rigidly secured to the body 1.
  • the axes of the presser rollers 9, 10 are parallel to each other and the peripheral surfaces of these rollers respectively bear against the webs of exposed negative and image-receptive material to spread the processing fluid between the adjoining sides of such webs before the laminated structure LS issues from the outlet 11).
  • the aforementioned compressing device further comprises a pair of guide members 15 which are movably mounted in the body 1 and serve to move the roller 9 toward the roller 10 in response to movement of the cover 4 to closed position.
  • These guide members 15 are reciprocable toward and away from the stubs 10a of the roller 10 and are biased toward the respective stubs by resilient elements here shown as helicalsprings 13.
  • Each guide member 15 is coupled to the body 1 by a pin-andslot connection 17, 15b.
  • the pins 17 of these connections are rigid with the body 1.
  • the body 1 further accommodates two retainers 16 which are rigidly secured thereto and serve as abutments for the upper ends of springs 13.
  • the retainers 16 are rigid or integral with the aforementioned bearing plates 10b for the stubs 10a of the roller 10.
  • Each guide member 15 has an upwardly extending centering pin 15a which extends into and guides the respective helical spring 13.
  • each guide member 15 is provided with a cam face c which slopes upwardly from the roller and is provided with a relatively shallow recess or notch d located directly above the axis of the roller 10.
  • the planes of the cam faces 150 are normal to the axis of the roller 9, see FIG. 3.
  • the outlet 1D preferably accommodates sealing strips of felt or elastic material, hingedly connected flaps or other suitable means for preventing uncontrolled entry of light.
  • the guide member 15 is received in an is reciprocable with reference to a channel 1d provided in the body 1. and this channel 1d has an extension 1e of circular outline for the respective helical spring 13.
  • the axis of the spring 13 is normal to the axes of the rollers 9, 10 and is coplanar with such axes when the cover 4 is moved to the closed position of FIG. 1.
  • the cannel 1d is adjacent to a second channel If in the body 1; this second channel receives a bent over marginal portion 4a of the outer wall 4A to prevent uncontrolled entry oflight into the housing.
  • the channel 1f also accommodates portions of flanges 8b on the bearing bracket 8 for the roller 9 when the cover 4 is moved to closed position.
  • Each guide member 15 is preferably stamped out of sheet metal and resembles a flat plate. These guide members are mirror symmetrical with reference to a central vertical plane of the apparatus.
  • the aforementioned pin-and-slot connections 15b, 17 prevent ejection of guide members 15 from the body 1 when the cover 4 is moved to the open position of FIG. 2.
  • the bearing plates 10b for the roller 10 may also consist of sheet metal stock and the aforementioned retainers 16 for the upper end convolutions of springs 13 may form integral parts of such bearing plates. This reduces the likelihood ofdeformation of the body 1 when the cover 4 is moved toward closed position. Such reduction of stresses upon the body 1 is of particular importance when the housing consists of synthetic plastic material.
  • the bearing plates 10b can be permanently embedded in or inserted into and fixedly secured in slots or recesses provided therefor in the body 1.
  • the body 1 and cover 4 may be provided with suitable detent means or locking means for preventing uncontrolled opening of the cover in response to a pull upon the laminated structure LS in order to withdraw an exposed frame from the housing.
  • a locking device may be provided to establish a separable connection between the lateral portions 411 of the outer wall 4A and the adjoining portions of the body 1.
  • Such locking device should be strong enough to prevent unintentional withdrawal of stubs 9a from the corresponding notches or recesses 15d when the user of the apparatus exerts a pull in order to withdraw an exposed frame of the negative web material by way of the outlet 10.
  • the locking device may include a handle to facilitate movement of the cover 4 to open position.
  • the apparatus of FIGS. 1 to 3 further comprises suitable blocking means for arresting the rolls 11, 12 upon extraction of an exposed film frame, i.e., for preventing withdrawal of unexposed frames.
  • Such blocking means are well known in the art and, therefore, are not shown in the drawing.
  • FIGS. 1 to 3 An important advantage of the structure shown in FIGS. 1 to 3 is that the forces which are necessary to bias the presser rollers 9, 10 against each other in closed position of the cover 4 need not bring about any stressing of the cover. Therefore, the outer wall 4A may consist of relatively thin synthetic plastic material.
  • the bearing bracket 8 is not stressed when the springs 13 bias the roller 9 towardthe roller 10 because the stresses are taken up by the retainers 16 and by the bearing plates 10b for the roller 10.
  • the user of the apparatus moves the cover 4 to the open position by pivoting the cover in a clockwise direction, as viewed in FIG. 1.
  • Such pivoting of the cover 4 must be receded by opening or release of the aforementioned locking device.
  • the user must overcome the resistance of springs 13 which bias the guide members 15 against the respective stubs 9a of the roller 9, i.e., the user must forcibly extract portions of the stubs 9a from the recesses 15d in the cam faces 150.
  • the chambers 1b and 1c are then accessible so that the user can insert a fresh roll 11 into the chamber 1b and a fresh roll 12 into the chamber 1c.
  • the leaders of such rolls are normally connected to each other to facilitate manipulation.
  • the foremost portion of the web of negative material is placed adjacent to the platform 1? in the body 1 and the foremost portion of positive material is placed over the roller 10.
  • the leader is threaded through the outlet 1D.
  • the peripheral surfaces of the rollers 9, 10 press the underside of the negative web against the upper side of the positive web and cause a pod to burst so that the developing fluid spills from the pod and spreads between the upper and lower sides of the two webs.
  • the aforementioned blocking device prevents further withdrawal of the webs when the exposed frame is fully withdrawn by way of the outlet [D
  • An important advantage of the guide members 15 and springs 13 is that they permit the roller 9 to move toward and away from the roller 10 during withdrawal of an exposed frame.
  • the roller 9 can yield when the thickness of the laminated structure passing through the gap between the rollers 9, 10 increases, for example, when the pod with developing fluid is to be moved through such gap.
  • the bias of springs 13 is strong enough to insure that the pod bursts and that it spills its contents along the adjacent sides of the webs during extraction from the housing.
  • the springs 13 insure uniform distribution of developing fluid between the adjoining sides of the webs during extraction of an exposed frame of the negative web.
  • the springs 13 also permit the roller 9 to yield shortly before the withdrawal of an exposed frame is completed, i.e., at a time when the gap between the rollers 9, 10 accommodates and permits passage of a receptacle for surplus developing fluid.
  • FIG. 4 illustrates a portion of a modified apparatus wherein the roller 110 (corresponding to the roller 10 of FIGS. 1 to 3) is biased by helical springs 113 in a direction toward two fixedly mounted guide members 115 (only one shown).
  • the guide member 115 are rigid with bearings 1l0b for the stubs 110a of the roller 110, and these bearings are provided with integral or rigidly mounted retainers 116 for the lower ends of springs 113.
  • the springs 13 are not needed.
  • the cam faces 1150 of the guide members cause the roller 9 (not shown) to move toward the roller 110 when the cover is moved to closed position and the stubs 9a of the roller 9 ultimately enter the recesses or notches 115d of the guide members 15 when the cover 4 reaches its closed position.
  • the guide members 115 preferably consist of stamped sheet metal stock and can be made in one piece with the corresponding bearings 110a and retainers 116. The bearings 110a and the guide members 115 are inserted into and fixedly mounted in suitable recesses or channels of the body 101.
  • a combination comprising a housing having chamber means for positive and negative web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, said housing comprising a first portion and a second portion movable with reference to the first por tion between open and closed positions in which it respectively affords access to and seals said chamber means; and compressing means for biasing the positive and negative materials against each other during advance along a predetermined stretch of said path, said compressing means comprising a first presser member installed in said first portion at one side of said stretch, a second presser member carried by said second portion and being located at the other side of said stretch in closed position of said second portion, said first presser member being movable with reference to said first portion toward and away from said second presser member in the closed position of said second portion and said second presser member being movable with reference to said second portion toward and away from said first presser member, means for biasing said first presser member toward said second presser member, and guide means provided in said first portion
  • said compressing means further comprises retainer means for said biasing means, said retainer means being rigid with said guide means.
  • a combination comprising a housing having chamber means for positive and negative web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, said housing comprising a first portion and a second portion movable with reference to the first portion between open and closed positions in which it respectively affords access to and seals said chamber means; and compressing means for biasing the positive and negative materials against each other during advance along a predetermined stretch of said path, said compressing means comprising a first presser member installed in said first portion at one side of said stretch, a second presser member carried by said second portion and being located at the other side of said stretch in closed position of said second portion, said second presser member being movable with reference to said second portion toward and away from said first presser member, and guide means provided in said first portion for moving said second presser member toward said first presser member in response to movement of said second portion to closed position, said guide means comprising at least one guide member mounted in said first portion for movement toward and away from said first presser member
  • a combination comprising a housing having chamber means for positive and negative web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, said housing comprising a first portion including two sidewalls and a second portion movable with reference to the first portion between open and closed positions in which it respectively affords access to and seals said chamber means; and compressing means for biasing the positive and negative materials against each other during advance along a predetermined stretch of said path, said compressing means comprising a first presser member installed in said first portion at one side of said stretch, a roller-shaped second presser member carried by said second portion and being located at the other side of said stretch in closed position of said second portion, said second presser member having two end portions each adjacent to one of said sidewalls in the closed position of said second portion and said second presser member being movable with reference to said second portion toward and away from said first presser member, and guide means provided in said first portion for moving said second presser member toward said first presser member in response to
  • each of said guide members has a cam face located in a plane which is substantially normal to the axis of said roller and sloping toward said first presser member, said end portions of the roller being arranged to travel along the respective cam faces during movement of said second portion to closed position.
  • each of said cam faces is provided with a notch which accommodates the respective end portion of the roller in closed position of said second portion.
  • a combination comprising a housing having chamber means for positive and negative web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, said housing comprising a first portion and a second portion movable with reference to the first por' tion between open and closed positions in which it respectively affords access to and seals said chamber means; and compressing means for biasing the positive and negative materials against each other during advance along a predetermined stretch of said path, said compressing means comprising a first presser member installed in said first portion at one side of said stretch, a second presser member carried by said second portion and being located at the other side of said stretch in closed position of said second portion.
  • said second presser member being movable with reference to said second portion toward and away from said first presser member. and guide means provided in said first portion for moving said second presser member toward said first presser member in response to movement of said second portion to closed position, said guide means comprising at least one guide member mounted in said first portion for movement toward and away from said first presser member and coupling means connecting said guide member to said first portion.
  • a combination comprising a housing having chamber means for positive and negative web materials and defining a path along which such materials can be advanced toward an outlet provided in the housing, said housing comprising a first portion and a second portion movable with reference to the first portion between open and closed positions in which it respectively affords access to and seals said chamber means; and compressing means for biasing the positive and negative materials against each other during advance along a predetermined stretch of said path, said compressing means comprising a first presser member installed in said first portion at one side of said stretch, bearing means for said first presser member, a second presser member carried by said second portion and being located at the other side of said stretch in closed position of saidsecond portion, said second presser member bein movable with reference to said secon portion toward an away from said first presser member, and guide means provided in said first portion for moving said second presser member toward said first presser member in response to movement of said second portion to closed position, said guide means comprising at least one guide member movable in said

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Photographic Developing Apparatuses (AREA)
US728997A 1967-05-19 1968-05-14 Apparatus for image-transfer photography Expired - Lifetime US3555988A (en)

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DEA55756A DE1273987B (de) 1967-05-19 1967-05-19 Fotografische Kamera

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US3555988A true US3555988A (en) 1971-01-19

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US728997A Expired - Lifetime US3555988A (en) 1967-05-19 1968-05-14 Apparatus for image-transfer photography

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030144969A1 (en) * 2001-12-10 2003-07-31 Coyne Patrick J. Method and system for the management of professional services project information
US20110231391A1 (en) * 2001-12-10 2011-09-22 Coyne Patrick J Project management database and method of managing project related information
US8527412B1 (en) * 2008-08-28 2013-09-03 Bank Of America Corporation End-to end monitoring of a check image send process
US9823958B2 (en) 2016-02-08 2017-11-21 Bank Of America Corporation System for processing data using different processing channels based on source error probability
US9952942B2 (en) 2016-02-12 2018-04-24 Bank Of America Corporation System for distributed data processing with auto-recovery
US10067869B2 (en) 2016-02-12 2018-09-04 Bank Of America Corporation System for distributed data processing with automatic caching at various system levels
US10437778B2 (en) 2016-02-08 2019-10-08 Bank Of America Corporation Archive validation system with data purge triggering
US10437880B2 (en) 2016-02-08 2019-10-08 Bank Of America Corporation Archive validation system with data purge triggering
US10460296B2 (en) 2016-02-08 2019-10-29 Bank Of America Corporation System for processing data using parameters associated with the data for auto-processing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740341A (en) * 1952-09-27 1956-04-03 Polaroid Corp Photographic apparatus
US2862428A (en) * 1952-07-28 1958-12-02 Salter Manuel Lee Camera device to produce improved three-dimensional effects
US3270644A (en) * 1964-07-16 1966-09-06 Polaroid Corp Camera structure
US3311037A (en) * 1963-12-20 1967-03-28 Agfa Ag Pressure plate assembly for cameras

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233720B (de) * 1964-07-16 1967-02-02 Polaroid Corp Selbstentwicklerkamera mit getrennten Spulenvorratskammern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862428A (en) * 1952-07-28 1958-12-02 Salter Manuel Lee Camera device to produce improved three-dimensional effects
US2740341A (en) * 1952-09-27 1956-04-03 Polaroid Corp Photographic apparatus
US3311037A (en) * 1963-12-20 1967-03-28 Agfa Ag Pressure plate assembly for cameras
US3270644A (en) * 1964-07-16 1966-09-06 Polaroid Corp Camera structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030144969A1 (en) * 2001-12-10 2003-07-31 Coyne Patrick J. Method and system for the management of professional services project information
US20110231391A1 (en) * 2001-12-10 2011-09-22 Coyne Patrick J Project management database and method of managing project related information
US20130086062A1 (en) * 2001-12-10 2013-04-04 Patrick J. Coyne Method and system for the management of professional services project information
US8935297B2 (en) 2001-12-10 2015-01-13 Patrick J. Coyne Method and system for the management of professional services project information
US10242077B2 (en) 2001-12-10 2019-03-26 Patrick J. Coyne Method and system for the management of professional services project information
US8527412B1 (en) * 2008-08-28 2013-09-03 Bank Of America Corporation End-to end monitoring of a check image send process
US9823958B2 (en) 2016-02-08 2017-11-21 Bank Of America Corporation System for processing data using different processing channels based on source error probability
US10437778B2 (en) 2016-02-08 2019-10-08 Bank Of America Corporation Archive validation system with data purge triggering
US10437880B2 (en) 2016-02-08 2019-10-08 Bank Of America Corporation Archive validation system with data purge triggering
US10460296B2 (en) 2016-02-08 2019-10-29 Bank Of America Corporation System for processing data using parameters associated with the data for auto-processing
US9952942B2 (en) 2016-02-12 2018-04-24 Bank Of America Corporation System for distributed data processing with auto-recovery
US10067869B2 (en) 2016-02-12 2018-09-04 Bank Of America Corporation System for distributed data processing with automatic caching at various system levels

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